RHBA-2004:164 - Bug Fix Advisory

Topic

An updated vsftpd package that fixes a signal handling bug which could
cause the service to stop accepting connections is now available.

Description

vsftpd is an FTP (File Transfer Protocol) daemon.

vsftpd was calling unsafe functions from within signal handlers; under
heavy load, this could lead to deadlock, leading the service to stop
accepting connections.

Users of vsftpd should upgrade to this updated package, which resolves this
issue.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

To update all RPMs for your particular architecture, run:

rpm -Fvh [filenames]

where [filenames] is a list of the RPMs you wish to upgrade. Only those
RPMs which are currently installed will be updated. Those RPMs which are
not installed but included in the list will not be updated. Note that you
can also use wildcards (*.rpm) if your current directory *only* contains the
desired RPMs.

Please note that this update is also available via Red Hat Network. Many
people find this an easier way to apply updates. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

If up2date fails to connect to Red Hat Network due to SSL
Certificate Errors, you need to install a version of the
up2date client with an updated certificate. The latest version of
up2date is available from the Red Hat FTP site and may also be
downloaded directly from the RHN website:

https://rhn.redhat.com/help/latest-up2date.pxt

Affected Products

• Red Hat Enterprise Linux Server 3 x86_64
• Red Hat Enterprise Linux Server 3 ia64
• Red Hat Enterprise Linux Server 3 i386
• Red Hat Enterprise Linux for IBM z Systems 3 s390x
• Red Hat Enterprise Linux for IBM z Systems 3 s390
• Red Hat Enterprise Linux for Power, big endian 3 ppc

Fixes

• BZ - 113364 - FTP service stops when heavy traffic load on vsftpd lasts long time.
• BZ - 119136 - vsftpd is very secure but not very stable

CVEs

• CVE-2004-2259

References

(none)